Overview
– Most of Nightmare Lord Xavius's attacks inflict Corruption on their victims. As a player gains more Corruption, they become increasingly vulnerable to the power of the Nightmare, eventually losing control entirely and turning against their friends at maximum Corruption.Players' only hope lies in the power of Ysera, who puts many of them into a deep slumber and forms a [Dream Simulacrum] of those players. When their Simulacrum perishes, the affected player will awaken, as any Corruption gained by their Simulacrum dissipates harmlessly.

Damage Dealers
– Players affected by [Dream Simulacrum] should protect non-dreaming players by handling any abilities that spread Corruption.Defeat Inconceivable Horrors before they can get close enough to cast [Dark Ruination] on Xavius.Absorb [Tainted Discharge] before it can reform back into Inconceivable Horrors.

When Xavius reaches 95% and 60% health, the Dream of Ysera puts half of the party into a Dreaming State. Affected players fall asleep while a Dream Simulacrum of them rises to fight Xavius. If the Dream Simulacrum should ever die, the player's actual body will awaken. All Nightmare Corruption gained by the Dream Simulacrum is lost when the player returns to their body.

Many of Xavius's spells spread Nightmare Corruption to those hit. The more corrupted a player becomes, the more the nightmare becomes real to the player. Should any player ever become completely corrupted, they will become dominated by Xavius.

Abominio del Terrore
– At 33 points of Corruption, colossal Nightmare creatures materialize from the player's mind, smashing the world around the player.

Corruzione: Ombre Devastanti
– Inflicts 1800000 Physical damage at the center. Allies further from the center take less damage. This damage ignores armor.Corruption: Crushing Shadows affects any player with more than 33 corruption.

Corruzione: Realtà Imperscrutabile
– The essence of Nightmares erupts into this reality, inflicting 570000 to 630000 Fire damage and causes 5 Nightmare Corruption. Corruption: Unfathomable Reality affects any player with more than 66 corruption.

Corruzione: Discesa nella Follia
– Increases damage and healing done by 150%.Upon expiration the player is overwhelmed by corruption, becoming Charmed and transforming into a Creature of Madness.